Yayın: Preparation Of Phase Change Material-Montmorillonite Composites Suitable For Thermal Energy Storage
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Tarih
2011-09-20
Yazarlar
Sarıer, Nihal
Önder, Emel
Özay, Serap
Özkılıç, Yılmaz
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayımcı
Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands
Özet
A new type of organoclay composite (PMMT) with good heat storage and release capacity was produced by intercalating n-hexadecane with Na-montmorillonite (Na-MMT) in a surfactant-assisted medium. The expansion of Na-MMT galleries by a Na salt of 4-dodecylbenzene sulfonic acid (SDS) solution prior to the intercalation of n-hexadecane enhanced the process. In the XRD analysis, expansions of the d spacings in the (0 01) plane were observed in all PMMT samples, indicating that the intercalation of n-hexadecane in the galleries of Na-MMT was successfully achieved. The most successful PMMT sample, prepared by intercalating 9 mmol n-hexadecane per gram of Na-MMT, displayed a high heat capacity (126 J g(-1)) and good thermal durability. The sample also had a higher thermal conductivity compared to pure n-hexadecane samples.The manufacture of the PCM-clay composites by the method of surfactant-mediated intercalation of n-hexadecane into Na-MMT is recommended to enhance the thermal performance of different thermal storage materials. (C) 2011 Elsevier B.V. All rights reserved.
Açıklama
Anahtar kelimeler
PCM, thermal property, DSC, XRD, intercalation, montmorillonite, building-materials, gypsum wallboard, latent-heat, performance, textiles, design, termal özellik, ortaya ekleme, montmorillonit, yapı malzemeleri, alçı duvar kaplaması, gizli ısı, performans, tekstil, dizayn